// this L.CRS.Baidu from https://github.com/muyao1987/leaflet-tileLayer-baidugaode/blob/master/src/tileLayer.baidu.js

if (L.Proj) {
    L.CRS.Baidu = new L.Proj.CRS(
        'EPSG:900913',
        '+proj=merc +a=6378206 +b=6356584.314245179 +lat_ts=0.0 +lon_0=0.0 +x_0=0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +wktext  +no_defs',
        {
            resolutions: (function () {
                var level = 19
                var res = []
                res[0] = Math.pow(2, 18)
                for (var i = 1; i < level; i++) {
                    res[i] = Math.pow(2, 18 - i)
                }
                return res
            })(),
            origin: [0, 0],
            bounds: L.bounds([20037508.342789244, 0], [0, 20037508.342789244]),
        }
    )
}

let ChinaProvider = L.TileLayer.extend({
    initialize: function (type, options) {
        // (type, Object)
        var providers = ChinaProvider.providers

        options = options || {}

        var parts = type.split('.')

        var providerName = parts[0]
        var mapName = parts[1]
        var mapType = parts[2]

        var url = providers[providerName][mapName][mapType]
        options.subdomains = providers[providerName].Subdomains
        options.key = options.key || providers[providerName].key

        if ('tms' in providers[providerName]) {
            options.tms = providers[providerName]['tms']
        }

        L.TileLayer.prototype.initialize.call(this, url, options)
    },

    getTileUrl: function (coords) {
        var data = {
            s: this._getSubdomain(coords),
            x: coords.x,
            y: coords.y,
            z: this._getZoomForUrl(),
        }
        if (this._map && !this._map.options.crs.infinite) {
            var invertedY = this._globalTileRange.max.y - coords.y
            if (this.options.tms) {
                data['y'] = invertedY
            }
            data['-y'] = invertedY
        }

        data.sx = data.x >> 4
        data.sy = ((1 << data.z) - data.y) >> 4

        return L.Util.template(this._url, L.Util.extend(data, this.options))
    },
})

ChinaProvider.providers = {
    TianDiTu: {
        Normal: {
            Map: '//t{s}.tianditu.gov.cn/DataServer?T=vec_w&X={x}&Y={y}&L={z}&tk={key}',
            Annotion: '//t{s}.tianditu.gov.cn/DataServer?T=cva_w&X={x}&Y={y}&L={z}&tk={key}',
        },
        Satellite: {
            Map: '//t{s}.tianditu.gov.cn/DataServer?T=img_w&X={x}&Y={y}&L={z}&tk={key}',
            Annotion: '//t{s}.tianditu.gov.cn/DataServer?T=cia_w&X={x}&Y={y}&L={z}&tk={key}',
        },
        Terrain: {
            Map: '//t{s}.tianditu.gov.cn/DataServer?T=ter_w&X={x}&Y={y}&L={z}&tk={key}',
            Annotion: '//t{s}.tianditu.gov.cn/DataServer?T=cta_w&X={x}&Y={y}&L={z}&tk={key}',
        },
        Subdomains: ['0', '1', '2', '3', '4', '5', '6', '7'],
        key: '174705aebfe31b79b3587279e211cb9a',
    },

    GaoDe: {
        Normal: {
            Map: '//webrd0{s}.is.autonavi.com/appmaptile?lang=zh_cn&size=1&scale=1&style=8&x={x}&y={y}&z={z}',
        },
        Satellite: {
            Map: '//webst0{s}.is.autonavi.com/appmaptile?style=6&x={x}&y={y}&z={z}',
            Annotion: '//webst0{s}.is.autonavi.com/appmaptile?style=8&x={x}&y={y}&z={z}',
        },
        Subdomains: ['1', '2', '3', '4'],
    },

    Google: {
        Normal: {
            Map: '//www.google.cn/maps/vt?lyrs=m@189&gl=cn&x={x}&y={y}&z={z}',
        },
        Satellite: {
            Map: '//www.google.cn/maps/vt?lyrs=s@189&gl=cn&x={x}&y={y}&z={z}',
            Annotion: '//www.google.cn/maps/vt?lyrs=y@189&gl=cn&x={x}&y={y}&z={z}',
        },
        Subdomains: [],
    },

    Geoq: {
        Normal: {
            Map: '//map.geoq.cn/ArcGIS/rest/services/ChinaOnlineCommunity/MapServer/tile/{z}/{y}/{x}',
            PurplishBlue:
                '//map.geoq.cn/ArcGIS/rest/services/ChinaOnlineStreetPurplishBlue/MapServer/tile/{z}/{y}/{x}',
            Gray: '//map.geoq.cn/ArcGIS/rest/services/ChinaOnlineStreetGray/MapServer/tile/{z}/{y}/{x}',
            Warm: '//map.geoq.cn/ArcGIS/rest/services/ChinaOnlineStreetWarm/MapServer/tile/{z}/{y}/{x}',
        },
        Theme: {
            Hydro: '//thematic.geoq.cn/arcgis/rest/services/ThematicMaps/WorldHydroMap/MapServer/tile/{z}/{y}/{x}',
        },
        Subdomains: [],
    },

    OSM: {
        Normal: {
            Map: '//{s}.tile.osm.org/{z}/{x}/{y}.png',
        },
        Subdomains: ['a', 'b', 'c'],
    },

    Baidu: {
        Normal: {
            Map: '//online{s}.map.bdimg.com/onlinelabel/?qt=tile&x={x}&y={y}&z={z}&styles=pl&scaler=1&p=1',
        },
        Satellite: {
            Map: '//shangetu{s}.map.bdimg.com/it/u=x={x};y={y};z={z};v=009;type=sate&fm=46',
            Annotion: '//online{s}.map.bdimg.com/tile/?qt=tile&x={x}&y={y}&z={z}&styles=sl&v=020',
        },
        Subdomains: '0123456789',
        tms: true,
    },

    Tencent: {
        Normal: {
            Map: '//rt{s}.map.gtimg.com/tile?z={z}&x={x}&y={-y}&type=vector&styleid=3',
        },
        Satellite: {
            Map: '//p{s}.map.gtimg.com/sateTiles/{z}/{sx}/{sy}/{x}_{-y}.jpg',
        },
        Terrain: {
            Map: '//p{s}.map.gtimg.com/demTiles/{z}/{sx}/{sy}/{x}_{-y}.jpg',
        },
        Subdomains: '0123',
    },
}

const chinaProvider = function (type, options) {
    return new ChinaProvider(type, options)
}
export default chinaProvider
